This is excerpted from http://scratched.gse.harvard.edu/guide/files/CreativeComputing20140806.pdf

Create an interactive "about me" project

Another open-ended infinitely expandable idea

Create a "marvelous toy"

It went "zip" when it moved and "bop" when it stopped,And "whirr" when it stood still.I never knew just what it was and I guess I never will

-Tom Paxton

In my experience this has been a great project to assign second and third graders, and adults. Kids have high expectations for "games" and don't know what "interactive" is supposed to mean, but a toy that does random stuff is totally appealing to them. Here's one example: http://scratch.mit.edu/projects/22813168/